(19)

(11)

EP 1 844 591 A1

(12)

(43) Date of publication: 17.10.2007 Bulletin 2007/42 (21) Application number: 05722639.1 (22) Date of filing: 31.01.2005

(51) International Patent Classification (IPC):  H04L 29/06(2006.01) (86) International application number: PCT/US2005/003070 (87) International publication number: WO 2006/085843 (17.08.2006 Gazette 2006/33)

(84) Designated Contracting States: DE FR GB (71) Applicant: Thomson Licensing 92100 Boulogne-Billancourt (FR)	(72) Inventors: LI, Jun Plainsboro, NJ 08536 (US) ZHANG, Junbiao Bridgewater, NJ 08807 (US) RAMASWAMY, Kumar Princeton, NJ 08540 (US) (74) Representative: Ruellan-Lemonnier, Brigitte  Thomson, European Patent Operations, 46 Quai Alphonse Le Gallo 92648 Boulogne Cedex 92648 Boulogne Cedex (FR)